we had the MC20X20V in our lab for two weeks. We used them with the PRE2. The upstream bonding works well. A show cable modem look likes:
[php]
show cable modem
D
MAC Address IP Address I/F MAC Prim RxPwr Timing Num I
State Sid (dBmv) Offset CPE P
001e.6971.xxxx 10.xx.xx.xx C5/0/2/U1 online(pt) 43 15.50 682 1 N
0023.bef8.xxxx 10.xx.xx.xx C6/0/0/UB w-online(pt) 166 15.00 649 0 N
0019.5e39.xxxx 10.xx.xx.xx C6/0/0/U0 online(pt) 167 14.50 292 0 N
[/php]
C6/0/0/[color=red]UB[/color]
In future the PRE4 makes definitely sence, to use the SIP-600 together with 1x10GE SPA to put the traffic away ;)
Hopefully next week we received the first shipment which we didn't must give back to Cisco.
Maybe the bad news: The output power level in [b]quad[/b]-qam operation is strictly based on the DRFI-Specification. This means no higher power-level as 52dBmV (realy no 0,5dB higher) is possible.
Not yet in live environment,
we had the MC20X20V in our lab for two weeks. We used them with the PRE2. The upstream bonding works well. A show cable modem look likes:
[php]
show cable modem
D
MAC Address IP Address I/F MAC Prim RxPwr Timing Num I
State Sid (dBmv) Offset CPE P
001e.6971.xxxx 10.xx.xx.xx C5/0/2/U1 online(pt) 43 15.50 682 1 N
0023.bef8.xxxx 10.xx.xx.xx C6/0/0/UB w-online(pt) 166 15.00 649 0 N
0019.5e39.xxxx 10.xx.xx.xx C6/0/0/U0 online(pt) 167 14.50 292 0 N
[/php]
C6/0/0/[color=red]UB[/color]
In future the PRE4 makes definitely sence, to use the SIP-600 together with 1x10GE SPA to put the traffic away ;)
Hopefully next week we received the first shipment which we didn't must give back to Cisco.
Maybe the bad news: The output power level in [b]quad[/b]-qam operation is strictly based on the DRFI-Specification. This means no higher power-level as 52dBmV (realy no 0,5dB higher) is possible.
regards,
wittmann
P.S. Sorry for my poor english ;)
Could you share any working config
regarding MC20x20 linecards ?
a configuration would be very nice, yes
Martin
DK